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https://issues.apache.org/jira/browse/HADOOP-12845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15407172#comment-15407172
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sunway commented on HADOOP-12845:
---------------------------------
you can add a link to solve the problem.
cd /usr/lib64/
ln -s libcrypto.so.1.0.1e libcrypto.so
> Improve Openssl library finding on RedHat system
> ------------------------------------------------
>
> Key: HADOOP-12845
> URL: https://issues.apache.org/jira/browse/HADOOP-12845
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.7.2
> Reporter: Sebastien Barrier
> Priority: Minor
>
> The issue is related to [https://issues.apache.org/jira/browse/HADOOP-11216].
> In the BUILDING.txt it's specified "Use -Drequire.openssl to fail the build
> if libcrypto.so is not found".
> On RedHat system (Fedora/Centos/...) the /usr/lib64/libcrypto.so is a link
> provided by openssl-devel RPM package which is fine on a build/development
> host, but devel packages are not supposed to be installed on Production
> servers (Hadoop Cluster) and the openssl RPM package don't include that link
> which is a problem.
> # hadoop checknative -a
> ...
> openssl: false Cannot load libcrypto.so (libcrypto.so: cannot open shared
> object file: No such file or directory)!
> There's only /usr/lib64/libcrypto.so.10 but no /usr/lib64/libcrypto.so
> Also trying to compile with "-Drequire.openssl
> -Dopenssl.lib=/usr/lib64/libcrypto.so.10" failed.
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